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1. 发明授权

US08125480B2 Flat texture volume rendering 有权
标题翻译：平坦的纹理体积渲染
公开(公告)号：US08125480B2
公开(公告)日：2012-02-28
申请号：US11401066
申请日：2006-04-10
申请人： Thomas Schiwietz , Shmuel Aharon
发明人： Thomas Schiwietz , Shmuel Aharon
IPC分类号： G06T15/00
CPC分类号： G06T15/04 , G06T15/08
摘要： A GPU accelerated volume rendering method from flat textures (also known as texture atlas) is disclosed. The method is not restricted to a specific rendering technique. The method is fast as it requires no reordering or copying passes. An image processing system is also provided. Addressing of two dimensional flat textures is accomplished based on the viewing direction. A first addressing scheme is used for the x direction, a second addressing scheme is used for the y direction and a third addressing scheme is used for the z direction, where x, y, and z refer to the axes of Cartesian coordinate system.
摘要翻译：公开了从平坦纹理（也称为纹理图集）的GPU加速体绘制方法。该方法不限于特定的渲染技术。该方法很快，因为它不需要重新排序或复制通过。还提供了图像处理系统。基于观察方向实现二维平坦纹理的寻址。第一寻址方案用于x方向，第二寻址方案用于y方向，第三寻址方案用于z方向，其中x，y和z表示笛卡尔坐标系的轴。

2. 发明授权

US07907777B2 Manifold learning for discriminating pixels in multi-channel images, with application to image/volume/video segmentation and clustering 有权
标题翻译：用于识别多通道图像中的像素的歧管学习，应用于图像/音量/视频分割和聚类
公开(公告)号：US07907777B2
公开(公告)日：2011-03-15
申请号：US11273187
申请日：2005-11-14
申请人： Shmuel Aharon , Leo Grady , Thomas Schiwietz
发明人： Shmuel Aharon , Leo Grady , Thomas Schiwietz
IPC分类号： G06K9/34 , G06K9/48
CPC分类号： G06K9/6252 , G06K9/6232
摘要： A manifold learning technique is applied to the problem of discriminating an object boundary between neighboring pixels/voxels in an image. The manifold learning technique is referred to as locality preserving projections. The application is for multi-channel images, which may include registered images/volumes, a time series of images/volumes, images obtained using different pulse sequences or contrast factors, radar and color photographs.
摘要翻译：歧管学习技术被应用于鉴别图像中相邻像素/体素之间的对象边界的问题。歧管学习技术被称为局部保留投影。应用于多通道图像，其可以包括记录的图像/体积，图像/体积的时间序列，使用不同脉冲序列或对比度因子获得的图像，雷达和彩色照片。

3. 发明授权

US07889922B2 Method and system for histogram calculation using a graphics processing unit 有权
标题翻译：使用图形处理单元进行直方图计算的方法和系统
公开(公告)号：US07889922B2
公开(公告)日：2011-02-15
申请号：US11594460
申请日：2006-11-08
申请人： Oliver Fluck , Shmuel Aharon , Mikael Rousson , Daniel Cremers
发明人： Oliver Fluck , Shmuel Aharon , Mikael Rousson , Daniel Cremers
IPC分类号： G06K9/00 , G06F17/00 , G06F15/80 , G06T1/00 , G06T1/60
CPC分类号： G06T1/20
摘要： A method for histogram calculation using a graphics processing unit (GPU), comprises storing image data in a two-dimensional (2D) texture domain; subdividing the domain into independent regions or tiles; calculating in parallel, in a GPU, a plurality of tile histograms, one for each tile; and summing up in parallel, in the GPU, the tile histograms so as to derive a final image histogram.
摘要翻译：一种使用图形处理单元（GPU）进行直方图计算的方法，包括将图像数据存储在二维（2D）纹理域中; 将域细分为独立区域或瓦片; 在GPU中并行计算多个瓦片直方图，每个瓦片一个; 并且在GPU中并行地并行地绘制瓦片直方图，以便导出最终图像直方图。

4. 发明授权

US07519220B2 GPU accelerated isoperimetric algorithm for image segmentation, digital photo and video editing 有权
标题翻译： GPU加速图像分割算法，数字照片和视频编辑
公开(公告)号：US07519220B2
公开(公告)日：2009-04-14
申请号：US11273511
申请日：2005-11-14
申请人： Shmuel Aharon , Leo Grady , Thomas Schiwietz
发明人： Shmuel Aharon , Leo Grady , Thomas Schiwietz
IPC分类号： G06K9/34
CPC分类号： G06K9/6224 , G06K9/342 , G06T7/12 , G06T7/194 , G06T7/62 , G06T2207/20101
摘要： A system and method for segmenting an object in an image using an isoperimetric ratio in a graphics processing unit is disclosed. The object is identified by one or more selected pixels located within the object. The system includes a graphics processing unit and software loadable on the graphics processing unit. The software is operable to find weights for edges, to build a Laplacian matrix and a d vector, to eliminate the row and column corresponding to the one or more selected pixels to determine L0 and d0, to solve x0 in the equation L0x0=d0; and to threshold the potentials x at the value that selects the object having the lowest isoperimetric ratio.
摘要翻译：公开了一种用于在图形处理单元中使用等效比分割图像中的对象的系统和方法。对象由位于对象内的一个或多个所选像素识别。该系统包括图形处理单元和可加载在图形处理单元上的软件。软件可操作以找到边缘的权重，以构建拉普拉斯矩阵和d向量，以消除与一个或多个所选像素相对应的行和列，以确定L0和d0，以求解方程式L0x0 = d0中的x0; 并且以选择具有最低等效比的对象的值来阈值电位x。

5. 发明申请

US20090052757A1 DEFORMABLE 2D-3D REGISTRATION 有权
标题翻译：可变2D-3D注册
公开(公告)号：US20090052757A1
公开(公告)日：2009-02-26
申请号：US12192278
申请日：2008-08-15
申请人： Ali Khamene , Oliver Fluck , Shmuel Aharon
发明人： Ali Khamene , Oliver Fluck , Shmuel Aharon
IPC分类号： G06K9/00
CPC分类号： G06K9/00208 , A61B6/032 , A61B6/5229 , A61B6/5235 , A61N5/103 , A61N5/1049 , A61N2005/1062 , G06T7/30 , G06T2207/10072 , G06T2207/10124 , G06T2207/30004
摘要： A method for deformable registration including determining a vector field from a two-dimensional matching of a volume of an object of interest and a two-dimensional image of the object of interest, providing a deformation profile, and finding a volume deformation that maps to a state of the two-dimensional image, wherein the deformation is parameterized by the vector field and control points of the deformation profile to find a control point configuration of the volume deformation.
摘要翻译：一种用于可变形配准的方法，包括从感兴趣对象的体积和感兴趣对象的二维图像的二维匹配中确定矢量场，提供变形曲线，以及找到映射到二维图像的状态，其中通过矢量场和变形曲线的控制点参数化变形，以找到体积变形的控制点配置。

6. 发明授权

US07088358B2 Collision detection method for deformable objects in a scene 有权
公开(公告)号：US07088358B2
公开(公告)日：2006-08-08
申请号：US10370382
申请日：2003-02-19
申请人： Shmuel Aharon , Christophe Lenglet
发明人： Shmuel Aharon , Christophe Lenglet
IPC分类号： G06T15/00 , G09G5/00
CPC分类号： G06T17/00
摘要： A collision detection method for polygonal objects using OpenGL is provided, comprising dividing a surface of each object into a set of axis aligned bounding boxes (AABB) to build an AABB tree, selecting an object among the plurality of polygonal objects as a reference object, defining a global bounding box of the reference object, detecting first bounding boxes of the plurality of polygonal objects that intersect the global bounding box of the reference object, and determining intersections for each polygon of the reference object with all polygons of the plurality of polygonal objects.

7. 发明授权

US08184886B2 Deformable 2D-3D registration 有权
标题翻译：可变形2D-3D注册
公开(公告)号：US08184886B2
公开(公告)日：2012-05-22
申请号：US12192278
申请日：2008-08-15
申请人： Ali Khamene , Oliver Fluck , Shmuel Aharon
发明人： Ali Khamene , Oliver Fluck , Shmuel Aharon
IPC分类号： G06K9/00
CPC分类号： G06K9/00208 , A61B6/032 , A61B6/5229 , A61B6/5235 , A61N5/103 , A61N5/1049 , A61N2005/1062 , G06T7/30 , G06T2207/10072 , G06T2207/10124 , G06T2207/30004
摘要： A method for deformable registration including determining a vector field from a two-dimensional matching of a volume of an object of interest and a two-dimensional image of the object of interest, providing a deformation profile, and finding a volume deformation that maps to a state of the two-dimensional image, wherein the deformation is parameterized by the vector field and control points of the deformation profile to find a control point configuration of the volume deformation.
摘要翻译：一种用于可变形配准的方法，包括从感兴趣对象的体积和感兴趣对象的二维图像的二维匹配中确定矢量场，提供变形曲线，以及找到映射到二维图像的状态，其中通过矢量场和变形曲线的控制点参数化变形，以找到体积变形的控制点配置。

8. 发明授权

US07724954B2 Method and system for interactive image segmentation 有权
标题翻译：交互式图像分割的方法和系统
公开(公告)号：US07724954B2
公开(公告)日：2010-05-25
申请号：US11591767
申请日：2006-11-02
申请人： Oliver Fluck , Shmuel Aharon , Mikael Rousson , Daniel Cremers
发明人： Oliver Fluck , Shmuel Aharon , Mikael Rousson , Daniel Cremers
IPC分类号： G06K9/34
CPC分类号： G06K9/6226 , G06K9/38 , G06K9/6207
摘要： A method for segmentation of an image interactively with a user utilizes level set segmentation and includes selecting by user input respective areas of object and of background; initializing an embedding function implementing a segmentation boundary according to the selecting; computing intensity distributions and for the respective areas of object and of background; and performing repeatedly the steps below until convergence is reached: (a) evolving the embedding function, (b) recomputing the intensity distributions, and (c) checking for new user input and, if so: (d) updating labeling of the areas of object and background.
摘要翻译：用于与用户交互地分割图像的方法利用水平集分割，并且包括通过用户输入选择对象和背景的相应区域; 根据选择初始化实现分割边界的嵌入功能; 计算强度分布和对象和背景的各个区域; 并重复执行以下步骤直到达到融合：（a）演进嵌入功能，（b）重新计算强度分布，（c）检查新的用户输入，如果是：（d）更新标签的区域对象和背景。

9. 发明授权

US07697756B2 GPU accelerated multi-label image segmentation (MLS) 有权
标题翻译： GPU加速多标签图像分割（MLS）
公开(公告)号：US07697756B2
公开(公告)日：2010-04-13
申请号：US11098676
申请日：2005-04-04
申请人： Shmuel Aharon , Leo Grady
发明人： Shmuel Aharon , Leo Grady
IPC分类号： G06K9/34
CPC分类号： G06T7/143 , G06T7/11 , G06T2200/28 , G06T2207/20072 , G06T2207/20101 , G06T2207/30004
摘要： A method for image segmentation includes specifying seed points in an image of interest, the seed points corresponding to a node in a seed texture, each seed point having a different color. The method includes determining a matrix for each node, including neighboring edge weights of each node, and determining a probability that a node can be characterized as each seed point. The method includes assigning the node the color of a most probable seed point, and outputting a segmentation of the image of interest according to node assignments, wherein the segmentation differentiates portions of the image of interest.
摘要翻译：一种用于图像分割的方法包括：在感兴趣图像中指定种子点，对应于种子纹理中的节点的种子点，每个种子点具有不同的颜色。该方法包括确定每个节点的矩阵，包括每个节点的相邻边缘权重，以及确定节点可被表征为每个种子点的概率。该方法包括将节点分配给最可能的种子点的颜色，以及根据节点分配输出感兴趣图像的分割，其中分割区分感兴趣图像的部分。

10. 发明申请

US20080100621A1 SYSTEM AND METHOD FOR CORONARY SEGMENTATION AND VISUALIZATION 有权
标题翻译：用于冠状动脉分段和可视化的系统和方法
公开(公告)号：US20080100621A1
公开(公告)日：2008-05-01
申请号：US11870546
申请日：2007-10-11
申请人： Shmuel Aharon , Mehmet Akif Gulsun , Huseyin Tek
发明人： Shmuel Aharon , Mehmet Akif Gulsun , Huseyin Tek
IPC分类号： G06T17/00
CPC分类号： G06T17/20 , G06T7/12 , G06T7/162 , G06T7/60 , G06T2207/10072 , G06T2207/20044 , G06T2207/30101
摘要： A method of coronary vessel segmentation and visualization includes providing a digitized coronary image, placing a plurality of seed points along an estimated centerline of a coronary vessel, selecting a seed point and constructing a cyclic graph around the seed point in a plane perpendicular to the centerline at the seed point, performing a multi-scale-mean shift filtering in the perpendicular plane to estimate image gradient values, detecting a vessel boundary using a minimum-mean-cycle optimization that minimizes a ratio of a cost of a cycle to a length of a cycle, constructing a sub-voxel accurate vessel boundary about a point on the centerline, and refining the location of the centerline point from the sub-voxel accurate boundary, where the steps of constructing a sub-voxel accurate vessel boundary and refining the centerline point location are repeated until convergence.
摘要翻译：冠状动脉血管分割和可视化的方法包括提供数字化冠状动脉图像，沿着冠状血管的估计中心线放置多个种子点，在垂直于中心线的平面中选择种子点和围绕种子点构建循环图在种子点处，在垂直平面上执行多尺度均值偏移滤波以估计图像梯度值，使用最小平均周期优化来检测血管边界，所述最小平均周期优化使周期成本与长度的比率最小化循环，围绕中心线上的点构建子体素准确的血管边界，并且从子体素精确边界改进中心线点的位置，其中构建子体素准确的血管边界并提炼中心线点位置重复直到收敛。

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